On 4 July 1999, the celebrity couple married at Luttrellstown Castle in Ireland, two years after meeting at a charity football match.
Two decades later, the Beckhams have celebrated their anniversary by sharing a collection of photographs taken throughout their relationship on social media, ranging from snaps taken on their wedding day to fashion faux pas.
On Thursday, David's posted several pictures from their wedding, the 2014 Met Gala and of the couple with their four children.
"WOW 20 years, look what we created," the former professional footballer wrote in the caption. "Love you so much."
Victoria, meanwhile, shared a video compilation of throwback pictures on Instagram, writing in the caption: "20 years today. I love you so much xxxxx Kisses x @davidbeckham."
On his Instagram story, David also shared a card he and Victoria were given by their seven-year-old daughter, Harper, for their anniversary.
The card features cartoon versions of the couple and their children, Brooklyn, Romeo, Cruz and Harper.
"You are the best parents in the entire world," the card reads. "We love making memories with you."
Several Instagram users wished David and Victoria congratulations on their relationship milestone.
"This is amazing! Congratulations!!" wrote tennis player Caroline Wozniaki.
To see all of David and Victoria's best fashion moments throughout the years, click here.
Join our new commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies